Chris Lattner 36019aa5c6 Make the AND elimination operation recursive and significantly more powerful, ...

eliminating an and for Nate's testcase:

int %bar(int %a, int %b) {
        entry:
        %tmp.1 = setne int %a, 0
        %tmp.2 = setne int %b, 0
        %tmp.3 = or bool %tmp.1, %tmp.2
        %retval = cast bool %tmp.3 to int
        ret int %retval
        }

generating:

_bar:
        addic r2, r3, -1
        subfe r2, r2, r3
        addic r3, r4, -1
        subfe r3, r3, r4
        or r3, r2, r3
        blr

instead of:

_bar:
        addic r2, r3, -1
        subfe r2, r2, r3
        addic r3, r4, -1
        subfe r3, r3, r4
        or r2, r2, r3
        rlwinm r3, r2, 0, 31, 31
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21315 91177308-0d34-0410-b5e6-96231b3b80d8

2005-04-18 03:48:41 +00:00

..

SelectionDAG

Make the AND elimination operation recursive and significantly more powerful,

2005-04-18 03:48:41 +00:00

AsmPrinter.cpp

add support for prefix/suffix strings to go around GlobalValue(s)

2005-04-02 12:21:51 +00:00

BranchFolding.cpp

…

IntrinsicLowering.cpp

First step in adding pcmarker intrinsic. Second step (soon) is adding backend support.

2005-03-28 20:05:49 +00:00

LiveInterval.cpp

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LiveInterval.h

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LiveIntervalAnalysis.cpp

there is no need to remove this instruction, linscan does it already as it

2005-04-09 16:24:20 +00:00

LiveIntervalAnalysis.h

Allow the live interval analysis pass to be a bit more aggressive about

2005-03-09 23:05:19 +00:00

LiveVariables.cpp

Consider the livein/out set for a function, allowing targets to not have to

2005-04-09 15:23:25 +00:00

MachineBasicBlock.cpp

print the machine CFG in the -print-machineinstrs dump

2005-04-01 06:48:38 +00:00

MachineCodeEmitter.cpp

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MachineFunction.cpp

Improve conformance with the Misha spelling benchmark suite

2005-01-30 00:09:23 +00:00

MachineInstr.cpp

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Makefile

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Passes.cpp

…

PHIElimination.cpp

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PhysRegTracker.h

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PrologEpilogInserter.cpp

Simplify/speedup the PEI by not having to scan for uses of the callee saved

2005-01-23 23:13:12 +00:00

RegAllocIterativeScan.cpp

Update these register allocators to set the PhysRegUsed info in MachineFunction.

2005-01-23 22:45:13 +00:00

RegAllocLinearScan.cpp

Update these register allocators to set the PhysRegUsed info in MachineFunction.

2005-01-23 22:45:13 +00:00

RegAllocLocal.cpp

Update this pass to set PhysRegsUsed info in MachineFunction.

2005-01-23 22:51:56 +00:00

RegAllocSimple.cpp

Update physregsused info.

2005-01-23 22:55:45 +00:00

TwoAddressInstructionPass.cpp

Use the TargetInstrInfo::commuteInstruction method to commute instructions

2005-01-19 07:08:42 +00:00

UnreachableBlockElim.cpp

Fix the missing symbols problem Bill was hitting. Patch contributed by

2005-03-17 15:38:16 +00:00

VirtRegMap.cpp

Make sure to notice that explicit physregs are used in the function

2005-04-04 21:35:34 +00:00

VirtRegMap.h

…